Not a diamond (appears to be weathered glass or industrial slag with a circular impact fracture/conchoidal fracture pattern)
Not a diamond (appears to be weathered glass or industrial slag with a circular impact fracture/conchoidal fracture pattern) · Irregular raw shard
Raw / Uncut fracture surface Cut

Carat
Not applicable
Color
Light green tinted material
Clarity
Included / heavily flawed non-gem material
Shape
Irregular raw shard
Overall Assessment
This object is definitively not a diamond. It is a piece of weathered greenish glass showing classic conchoidal fracture patterns and an impact point. It holds no gemological or monetary value.
Cut Quality
Raw / Uncut fracture surface
Brilliance
Poor / Dull vitreous luster
Fire
None
Scintillation
None
Proportions
Not applicable
Symmetry
None (irregular shard)
Polish
Unpolished natural weathered surface
Fluorescence
Unknown
Inclusions
Bubbles, debris, and internal stress fractures typical of glass
Blemishes
Surface pitting, weather patina, and chipping
Origin
Man-made glass or industrial byproduct
Treatment Detection
None applicable
Estimated Value
No monetary value as a gemstone
Certification Estimate
Not certifiable as a gemstone by major labs (GIA, AGS, IGI)
Investment Potential
None
Similar Diamonds
None
Setting Suggestions
Not suitable for jewelry settings
Care & Maintenance
Handle with care to avoid cuts from sharp glass edges
Interesting Facts
The image shows a distinct conchoidal fracture with an impact point (often called a Hertzian cone crack), which is characteristic of brittle materials like glass breaking under impact.